Home / 3,816.80-5,724.48-1,867.76

Finding the Fourth Proportional to 3,816.80, 5,724.48 and 1,867.76

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Solution

The fourth proportional to 3,816.80, 5,724.48 and 1,867.76 is: 2,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.80 : 5,724.48 = 1,867.76 : x
  2. Step 2: Convert to fraction form
    3,816.80/5,724.48 = 1,867.76/x
  3. Step 3: Cross multiply
    3,816.80x = 5,724.48 × 1,867.76
  4. Step 4: Simplify right side
    3,816.80x = 10,691,954.76
  5. Step 5: Solve for x
    x = 10,691,954.76/3,816.80
  6. Step 6: Final answer
    x = 2,801.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.